How many moles of gas are in a 4.5 meter cylinder at 105K with a pressure of 2.0atm?

1 Answer
Apr 5, 2018

n=1044.53 mol

Explanation:

Assuming that the 4.5 m you talk about are actually 4.5 m^3 (so it's the cylinder's volume):

pV=nRT

Where:
p is the pressure.
V is the volum.
n is the number of mols.
R is the gas constant.
T is the temperature.

2·4.5=n·8.206·10^(-5)·105

n=1044.53 mol

Note: the gas constant changes with the units you use, if you use m^3, atm, K and mol; it is 8.206·10^(-5). If not, you must check the value it takes.